300. Vesuvianite. Crystaline

Dana number

58.2.4.1

Chemical formula

(Ca,Na,REE,Pb,Sb3+)19(Al,Mg,Fe3+,Fe2+,Ti,Mn,Cu,Zn)13(SiO4)10(Si2O7)4(B,¨)0.5O68(OH,F,O)10

Crystal class

Tetragonal

Mohs hardness

5-6.5

Specific gravity

3.32-3.43

Collected in

Jeffrey Quarry, Quebec, Canada

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